Finding the Fourth Proportional to 766,516.98, 1,057,559.31 and 444,164.88

Step by Step Solution

1. Step 1: Write the proportion equation
   766,516.98 : 1,057,559.31 = 444,164.88 : x
2. Step 2: Convert to fraction form
   766,516.98/1,057,559.31 = 444,164.88/x
3. Step 3: Cross multiply
   766,516.98x = 1,057,559.31 × 444,164.88
4. Step 4: Simplify right side
   766,516.98x = 469,730,704,019.03
5. Step 5: Solve for x
   x = 469,730,704,019.03/766,516.98
6. Step 6: Final answer
   x = 612,811.87